State the oxoacids of phosphorus with their formula,methods of preparation,and the presence of characteristic bonds in their structure.

(N/A)

Name	Formula,Oxidation state,Bonds,and Preparation
Hypophosphorous (Phosphinic)	Formula: $H_{3}PO_{2}$; Oxidation state: $+1$; Bonds: Two $P-H$,One $P=O$,One $P-OH$; Preparation: White $P_{4} + \text{alkali}$
Orthophosphorous (Phosphonic)	Formula: $H_{3}PO_{3}$; Oxidation state: $+3$; Bonds: One $P-H$,One $P=O$,Two $P-OH$; Preparation: $P_{2}O_{3} + H_{2}O$
Pyrophosphorous	Formula: $H_{4}P_{2}O_{5}$; Oxidation state: $+3$; Bonds: Two $P-H$,Two $P=O$,Two $P-OH$; Preparation: $PCl_{3} + H_{3}PO_{3}$
Hypophosphoric	Formula: $H_{4}P_{2}O_{6}$; Oxidation state: $+4$; Bonds: Two $P=O$,One $P-P$,Four $P-OH$; Preparation: Red $P_{4} + \text{alkali}$
Orthophosphoric	Formula: $H_{3}PO_{4}$; Oxidation state: $+5$; Bonds: One $P=O$,Three $P-OH$; Preparation: $P_{4}O_{10} + H_{2}O$
Pyrophosphoric	Formula: $H_{4}P_{2}O_{7}$; Oxidation state: $+5$; Bonds: Two $P=O$,One $P-O-P$,Four $P-OH$; Preparation: $P_{4}O_{10} + H_{2}O$
Metaphosphoric$^{*}$	Formula: $(HPO_{3})_{n}$; Oxidation state: $+5$; Bonds: Three $P=O$,Three $P-OH$,Three $P-O-P$ (for $n=3$); Preparation: Heat phosphoric acid

$^{*}$ Exists in polymeric forms only. Characteristic bonds of $(HPO_{3})_{3}$ have been given in the Table. The compositions of oxoacids are interrelated in terms of loss or gain of $H_{2}O$ or $O$-atom.